Improvement in milk-coolers



S. SPENCER.

Milk-Coolers.

h No. 135,169. v` Patentedlamzmam.

AM, PHomumosRAPH/c ca mf(asaamvef9 mams) PATENT OEEroEo SMITH SPENCER,OF KIANTONE, NEW YORK.'

IMPROVEMENT IN MILK-COOLERS.

Specification forming part of Letters Patent No. 135,169, dated January21, 1873.

To all whom it may concern:

' Be it known that I, SMITH SPENCER, of Kiantone, in the county ofChautauqua and State of New York, have invented a new and usefulImproved Milk-Cooler and I do hereby declare the following to be a full,clear, and exact description of the same, reference being had to theaccompanying drawing forming part of this specification, in which-Fignrel includes separate perspective views of the frame, pail, can, andtunnel. Fig.2 includes separate perspective views of the bucket andflanged rings, and Fig. 3 is a transverse vertical section of all theseparts properly put together.

Similar letters of reference in the accoinpa nying drawing indicate thesame parts.

This invention has for its object to improve the construction ofmilk-coolers in such manner, first, that aul airtight vessel may beformed for reirigerating purposes; second, that it may be cooled andaired during the process of pouring` it into the receiving-can; and,third, to facilitate the straining operation. To this end the inventionconsists, first, in combining an outer bucket with an innerreceiving-can in such manner as to form an airtight space between thebucket and can, second, in combining a tunnel with said bucket and canin such manner as to cansethe milk while being poured into the can topass first to the bottom, and then rise to the top; and, third, incombining a straining-pail set in a frame with said bucket and can, allwhich I will now proceed to describe.

In the drawing, A is the bucket aforesaid, the same being of ordina-ryconstruction, and having a packing, a, of soft odorless rubber, attachedto its top, in which is placed a metal ring, B, htving anges b, by whichit is kept on the pail. This ring projects a suitable distancepwithinthe bucket and supports a can, C, which extends down into the bucket andhas ange c projecting outward from its top, beneath which, andencircling the can, is a packing, c. The bucket, ring, can, and packingtogether form an air-tight space inside the bucket, which may be filledwith ice or cold water so as to make a refrigerating-chamber,

or with warm water so as to make a heatingchamber. D is the tunnelhaving legs d, which rest on the ring B and hold the tunnel at asuitable distance above the can for the admission' of air. The tube D'of the tunnel extends nearly to the bottom of the can. E is a frame,which may be placed over the bucket and can, and has a ring, c, whichsurrounds the bucket and a ring, c', which supports the straining-pailE.

Milk strained through the pail fallswhatever distance the pail may beplaced above the can, and, entering the tunnel, passes first to the coldbottom ofthe can, and thence rises to the top, thereby cooling andairing the milk.

On moving the frame and tunnel, and cov ering the can, the bucket andcan may be used for carrying milk to market or the factorniI and forother refrigerative purposes. Inv this case a wooden cover is placed onthe can and held down by means of loops fastened to the bucket, a bar ofwood passing over the cover and through these loops. A thumbscrew placedin the middle ot' this bar and turned down on the cover makes the canairtight.

There is a hole, b, in the ring B to receive a tunnel for iilling thebucket with warm or cold water, and to allow of the insertion of acylindrical thermometer for the testing the temperature of the water.

Having thus described my invention, what I claim is- `1. The combinationof the bucket A, dan ged ring B, canIC, and packings a c', all arrangedas described.

2. The combination of the bucket A,iian ged ring B, can C, and packingsa c with the tunnel D having legs d, all arranged as specified.

3. The combination of the bucket A,tlanged ring B, can U, packings 'ao', and tunnel D with the frame E and strainer-pail E', all arranged asset forth.

SMITH SPENCER.

Witnesses:

F. H. J oNEs, J oEN A. HALL, J r.

